using System;

​

public class Shape

    {

        private int shape_no;

        private double x_coordinate;

        private double y_coordinate;

​

        public int getShapeNo()

        {

            return shape_no;

        }

​

        public void setShapeNo(int value)

        {

            this.shape_no = value;

        }

​

        public double getXCoordinate()

        {

            return x_coordinate;

        }

​

        public void setXCoordinate(double value)

        {

            this.x_coordinate = value;

        }

​

        public double getYCoordinate()

        {

            return y_coordinate;

        }

​

        public void setYCoordinate(double value)

        {

            this.y_coordinate = value;

        }

​

        public virtual double getArea()

        {

            return 0.0;

        }

​

        public virtual void print()

        {

            Console.WriteLine("*** Shape ***");

            Console.WriteLine("Shape Number: " + this.getShapeNo());

            Console.WriteLine("X coordinate: " + this.getXCoordinate());

            Console.WriteLine("Y coordinate: " + this.getYCoordinate());

            Console.WriteLine("Area: " + this.getArea());

        }

​

    }

​

​

    public class Circle : Shape

    {

        private double radius;

​

        public double getRadius()

        {

            return radius;

        }

​

        public void setRadius(double value)

        {

            this.radius = value;

        }

​

        public override double getArea()

        {

            return radius * radius * Math.PI;

        }

​

        public override void print()

        {

            Console.WriteLine("*** Circle ***");

            Console.WriteLine("Shape Number: " + this.getShapeNo());

            Console.WriteLine("X coordinate: " + this.getXCoordinate());

            Console.WriteLine("Y coordinate: " + this.getYCoordinate());

            Console.WriteLine("Radius: " + this.getRadius());

            Console.WriteLine("Area: " + this.getArea());

        }

​

    }

​

​

    public class Rectangle : Shape

    {

        private double height;

        private double width;

        public override double getArea()

        {

          return height * width;

        }

        public double getHeight()

             {

        return height;

             }

​

        public void setHeight(double value)

             {

        this.height = value;

             }

        public double getWidth()

        {

        return width;

        }

​

        public void setWidth(double value)

        {

           this.width = value;

        }

        public override void print()

        {

            Console.WriteLine("*** Rectangle ***");

            Console.WriteLine("Shape Number: " + this.getShapeNo());

            Console.WriteLine("X coordinate: " + this.getXCoordinate());

            Console.WriteLine("Y coordinate: " + this.getYCoordinate());

            Console.WriteLine("Height: " + this.getHeight());

            Console.WriteLine("Width: " + this.getWidth());

            Console.WriteLine("Area: " + this.getArea());

        }

    }

​

public class Program

{

    public static void Main()

    {

        Shape shape = new Shape();

​

            Circle circle = new Circle();

            circle.setShapeNo(2);

            circle.setRadius(35);

            circle.setXCoordinate(267);

            circle.setYCoordinate(190);

            Circle circle2 = new Circle();

            circle2.setShapeNo(2);

            circle2.setRadius(46);

            circle2.setXCoordinate(90);

            circle2.setYCoordinate(55);

​

            Circle circle3 = new Circle();

            circle3.setShapeNo(3);

            circle3.setRadius(6);

            circle3.setXCoordinate(-34);

            circle3.setYCoordinate(85);

            Rectangle rectangle1 = new Rectangle();

            rectangle1.setShapeNo(4);

            rectangle1.setHeight(20);

            rectangle1.setWidth(8);

            rectangle1.setXCoordinate(68);

            rectangle1.setYCoordinate(78);

            Rectangle rectangle2 = new Rectangle();

            rectangle2.setShapeNo(5);

            rectangle2.setHeight(20);

            rectangle2.setWidth(8);

            rectangle2.setXCoordinate(998);

            rectangle2.setYCoordinate(783);     

            Shape[] shapeArray = new Shape[5];

            shapeArray[0] = circle;

            shapeArray[1] = circle2;

            shapeArray[2] = circle3;

            shapeArray[3] = rectangle1;

            shapeArray[4] = rectangle2;

​

​

            for( int i = 0; i< shapeArray.Length; i++)

            {

                shapeArray[i].print();

            }

​

    }

}